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Michelson-Spectro-Interferometry (MSI) of Be stars envelopes with the GI2T Interferometer

  • Ph. Stee (a1), D. Bonneau (a1), P. Lawson (a1), F. Morand (a1), D. Mourard (a1), I. Tallon (a1) and F. Vakili (a1)...

Abstract

The GI2T is an optical long-baseline Michelson interferometer which analyses dispersed stellar fringes in the multi-speckle mode with a spectral resolution of one Angstrom while the spatial resolution is about one milliarcsecond. This makes the GI2T a powerful instrument able to perform MSI of extended sources like Be stars or shell stars. In order to interpret these data we have developed a latitude dependent radiative wind model for Be stars. This numerical code enables us to compare directly computed 2D maps in some Balmer lines ( and ) with high angular resolution data of some Be stars.

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Copyright

References

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Araújo, F.X., Freitas Pacheco, J.A. 1989, MNRAS, 241, 543
Araújo, F.X., Freitas Pacheco, J.A., Petrini, D. 1993, MNRAS, 267, 501
Friend, D.B., Abbott, D.C. 1986, ApJ, 311, 701
Mourard, D., Bose, I., Blazit, A., Bonneau, D., Merlin, G., Morand, F., Vakili, F., Labeyrie, A. 1994, A&A, 283, 705
Stee, Ph. and Araújo, F.X. 1994, A&A, in press

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